Chromosomal effects on in vitro morphogenesis in wheat intervarietal substitution lines
2006
Tyankova, N.D.(Bulgarian Academy of Sciences, Sofia (Bulgaria). Inst. of Genetics) E-mail:[email protected] | Zagorska, N.(Bulgarian Academy of Sciences, Sofia (Bulgaria). Inst. of Genetics) | Chardakov, V.(Bulgarian Academy of Sciences, Sofia (Bulgaria). Inst. of Genetics) | Dryanova, A.(Bulgarian Academy of Sciences, Sofia (Bulgaria). Inst. of Genetics) | Dimitrov, B.(Bulgarian Academy of Sciences, Sofia (Bulgaria). Inst. of Genetics)
The effect of individual chromosomes on in vitro morphogenic ability of immature embryos was studied using 20 lines of Triticum aestivum cv. Chinese Spring with consequently substituted chromosome pairs from the cv. Timstein together with the two parental cultivars. The regeneration ability was quantified by the frequency of regenerative calli and the coefficient of propagation. The influence of the 5A, 1B and 4D chromosomes on in vitro morphogenesis was determined and the effect of 2A, 3A, 3B, 4B, 6B and 1D chromosomes, reported by other authors, was confirmed. The intervarietal substitutions of certain chromosomes caused significant variations in the number of morphogenic calli and recovered regenerants, in spite of the fact that the two parental cultivars were of similar morphogenic ability. Chromosome substitutions may have different compensatory effects.
Afficher plus [+] Moins [-]Mots clés AGROVOC
Informations bibliographiques
Cette notice bibliographique a été fournie par Library of Antonin Svehla
Découvrez la collection de ce fournisseur de données dans AGRIS